Spyder carbide-tipped diamond hole saw arbors are the professional choice for hole-making in tile, glass and masonry materials. The drill bit is spring-tensioned to apply the precise drilling pressure - optimizing tool life. A 5/8-18 thread is for use with standard diamond hole saws. For use on ceramic, porcelain, granite, slate, marble, glass, cement fiber board, laminates and more; 3/16-in carbide drill bit, 3/8-in shank, 1-1/2-in total depth of cut. Made in the USA. Carbide-tipped pilot drill is spring-tensioned to provide the optimal feed pressure for precise drilling Retractable pin eliminates the need to pre-drill pilot holes Accurate hole location and center drilling 5/8-in - 18 thread for use with standard diamond abrasive hole saws 3/8-In arbor 1-1/2-In total depth of cut Made in the USA For use with Spyder non-arbored diamond hole saws Series Name: Diamond Shank Size: 3/8-in Material: Carbide Package Quantity: 1 Quick Change: No Shank Type: Hex Compatible with Hole Saw Sizes: 9/16-in to 7-7/8-in Warranty: None CA Residents: Prop 65 Warning(s): Yes UNSPSC: 27112800